NHRA best be careful - they run off Ford there might not be Pro Stock for very long. The next PS might be gubberment specified - not more than 500V, two alternators maximum, NHRA approved OEM overcurrent protection....
1967 Falcon 4 door 351C-4V
1970 Mustang 351C-2V
http://raceabilene.com/kelly/hotrod
Owner built, owner abused.